%%cpp -d

#include "TString.h"
#include "TROOT.h"
#include "TChain.h"
#include "TBranch.h"
#include "TFileCollection.h"
#include "TH1F.h"
#include "TTreeReader.h"
#include "ROOT/TTreeProcessorMP.hxx"

#include <memory>

const auto file0 = "http://root.cern/files/h1/dstarmb.root";
const std::vector<std::string> files = {file0,
                                        "http://root.cern/files/h1/dstarp1a.root",
                                        "http://root.cern/files/h1/dstarp1b.root",
                                        "http://root.cern/files/h1/dstarp2.root"};

gROOT->SetBatch(kTRUE);

TString selectorPath = gROOT->GetTutorialDir();
selectorPath += "/tree/h1analysis.C+";
std::cout << "selector used is: " << selectorPath << "\n";
auto sel = TSelector::GetSelector(selectorPath);

#if defined(__reproduce_davix)
auto fp = std::make_unique<TTree>(TFile::Open(file0));
auto tree = fp->Get<TTree>("h42");
#endif

ROOT::TTreeProcessorMP pool(3);

TList *out = nullptr;
#if defined(__reproduce_davix)

out = pool.Process(*tree, *sel);
sel->GetOutputList()->Delete();
#endif

out = pool.Process(file0, *sel, "h42");
sel->GetOutputList()->Delete();

TChain ch;
TFileCollection fc;
for (auto &&file : files) {
   fc.Add(new TFileInfo(file.c_str()));
   ch.Add(file.c_str());
}

out = pool.Process(files, *sel, "h42");
sel->GetOutputList()->Delete();

out = pool.Process(fc, *sel);
sel->GetOutputList()->Delete();

out = pool.Process(ch, *sel);
sel->GetOutputList()->Delete();

return 0;